155142347 has 8 divisors (see below), whose sum is σ = 159086592. Its totient is φ = 151225000.

The previous prime is 155142341. The next prime is 155142367. The reversal of 155142347 is 743241551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155142347 - 2⁶ = 155142283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155142341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5222 + ... + 18372.

It is an arithmetic number, because the mean of its divisors is an integer number (19885824).

Almost surely, 2^155142347 is an apocalyptic number.

155142347 is a deficient number, since it is larger than the sum of its proper divisors (3944245).

155142347 is a wasteful number, since it uses less digits than its factorization.

155142347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13449.

The product of its digits is 16800, while the sum is 32.

The square root of 155142347 is about 12455.6150791521. The cubic root of 155142347 is about 537.3329245999.

Adding to 155142347 its reverse (743241551), we get a palindrome (898383898).

The spelling of 155142347 in words is "one hundred fifty-five million, one hundred forty-two thousand, three hundred forty-seven".